A man caught trying to smuggle stun guns into Scotland posted footage of himself using the weapons on social media.

Father-of-four Henry Morton was stopped by Border Force officers at Glasgow Airport on his way back from a holiday in Bulgaria in September 2014.

Two stun guns disguised as iPhones were discovered in his suitcase but Morton claimed he thought they were genuine phones.

Investigators later found videos on Morton's Facebook page where he demonstrated using the weapons along with incriminating messages about selling on the stun guns upon his return to the UK.

At the High Court in Edinburgh on Monday, a judge refused a plea to allow Morton to escape the minimum sentence for possessing the weapons and jailed him for five years.

Lord Ericht told Morton: "You were well aware that what you were doing was wrong."

The judge rejected a defence plea that there were exceptional circumstances which would allow him not to impose the five-year term laid down by parliament.

Lord Ericht said: "The minimum sentence cannot be said to be arbitrary or disproportionate."

He said selling the stun guns would have put them into the hands of others who may have used them for violent purposes.

Lord Ericht said he had paid careful attention to evidence about Morton's IQ but added: "In my view that does not constitute an exceptional circumstance."

The judge was shown footage retrieved from Morton's Facebook account, titled Henry's Funny Videos 2014, as Morton earlier pleaded guilty to firearms offences.

In the self-shot video Morton identified himself and revealed he was at the Sunny Beach resort in Bulgaria.

He said: "I just went to the supermarket today and I bought, as you can see, a nice iPhone 4S. How would you like to have one of these yourself?"

Morton then demonstrated the weapon, which can discharge about 5000 volts, on camera.

In further incriminating footage he was heard saying: "Got an iPhone 4 but it's no, it's a shocker."

Advocate depute Stewart Ronnie said Morton also posted on his Facebook page that he was in the eastern European country and was going to bring back stun guns to the UK to sell for £300 each.

Morton, 37, formerly of St James Street, Paisley, Renfrewshire, was later stopped by Border Force officers while going through the "nothing to declare" channel at customs at Glasgow airport.

He was detained and his baggage was searched and two stun guns were found in a jumper.

During an interview, he claimed he thought they were genuine iPhones and said he intended to use them as music players.

Mr Ronnie said: "The accused accepted he knew it was illegal to bring stun guns into the UK, having seen signs at Glasgow airport."

Restaurant worker Morton earlier admitted possessing without authority a disguised firearm and illegally possessing two stun guns disguised as mobile phones at the airport on September 16 in 2014.

Defence counsel Laura Reilly told the court that 99% of the population had a higher IQ than Morton and he had been assessed as posing a low risk of reoffending.

Morton told the court: "I thought it was OK to bring them back."

He told the court he had been drinking a lot in Bulgaria where alcohol was cheap during his holiday and had seen the items in a supermarket where a woman was testing them.

Morton said he had posted his "funny videos" in a bid to get "likes" on his social media page.

He said he did not regard himself as a violent person and did not intend to use them to cause harm to anyone.

Morton said: "I just seen them and I just bought them. I wasn't going to do anything with them."

He denied intending to sell them and said he had put that in a Facebook message because he was drunk.

Morton said he was "showing off" when he posted the video in Bulgaria and told the court: "I am sorry for what I have done.

John McGowan, head of the National Crime Agency's border investigation team, said the Facebook posts were a crucial piece of evidence.

He said: "The videos we recovered were key to securing a guilty plea. Once we found them Morton had to admit that he knew exactly what these weapons were capable of.

"They also show that he would have had no qualms about using them himself.

"These weapons have the capacity to cause serious harm, which is why we are determined to do all we can to keep them off the streets."